Switch Blade Position Sensing for Reliable Closed Contact Alignment
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Solution Overview
Problem
Electrical switches with partially closed positions experience high resistance, leading to overheating and potential failure due to inadequate contact alignment.
Innovation Solution
A system comprising sensors and communicators that monitor the position of electrical switch blades, transmitting signals to a remote external device for precise alignment and control, using wired or wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the switch blade is not placed in a fully closed position, then the switch operation is flexible and adaptable, but the electrical contacts have high resistance leading to overheating and potential failure
Solution Approach 1:
The patent employs sensors (optical, capacitive, inductive, or proximity sensors) to detect the blade position and provides feedback signals to an external device. This feedback mechanism ensures the blade reaches the fully closed position by monitoring its location and signaling when proper contact alignment is achieved, thereby preventing high resistance and overheating while maintaining operational flexibility.
Solution Approach 2:
The patent replaces traditional mechanical position indication mechanisms with electronic sensing systems. Optical sensors, capacitive sensors, inductive sensors, or proximity sensors detect blade position without physical contact, and transmit signals wirelessly or via wired connections to external devices, eliminating the need for complex mechanical feedback mechanisms while ensuring reliable closed position detection.
2Measurement precision
If sensors and communicators are added to monitor blade position, then accurate closed position detection is achieved, but device complexity increases
Solution Approach 1:
The patent designs the sensor system to serve multiple functions: detecting blade position, determining closed position achievement, and providing feedback signals for control purposes. The same sensor infrastructure supports both monitoring and control functions, reducing the need for separate dedicated components and thereby limiting the increase in system complexity.
Solution Approach 2:
The patent introduces sensors as intermediary devices that bridge the mechanical blade position and the electronic control system. These sensors convert physical blade position into electrical signals that can be processed by external devices, enabling accurate measurement without requiring direct integration between mechanical and electronic systems, thus managing complexity through modular interfacing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate and reliable closed position detection, preventing overheating and failure by maintaining optimal contact alignment.
Implementation Method 1
a first sensor coupled to the first electrical terminal. The first sensor is configured to sense a position of the first blade, and output a first signal corresponding to the position of the first blade
Data Source
AI summary
A system for collecting information related to an electrical switch. The system including a first switch, a second switch, and an external device. The external device is configured to receive the first and second signals corresponding to the first and second switches. Wherein the external device is located remotely from the first switch and the second switch.